![Apple Watch tells me my blood oxygen drops during sleep. I highly doubt this is accurate. Getting a sleep study tonight to be sure. : r/AppleWatch Apple Watch tells me my blood oxygen drops during sleep. I highly doubt this is accurate. Getting a sleep study tonight to be sure. : r/AppleWatch](https://i.redd.it/tf4j0fpe44xa1.jpg)
Apple Watch tells me my blood oxygen drops during sleep. I highly doubt this is accurate. Getting a sleep study tonight to be sure. : r/AppleWatch
![How to Measure Blood Oxygen Saturation on APPLE Watch Ultra - Control Health with Apple Watch - YouTube How to Measure Blood Oxygen Saturation on APPLE Watch Ultra - Control Health with Apple Watch - YouTube](https://i.ytimg.com/vi/sst4HWg24M8/hq720.jpg?sqp=-oaymwEhCK4FEIIDSFryq4qpAxMIARUAAAAAGAElAADIQj0AgKJD&rs=AOn4CLA_zORWSBSJ8OsRk1tTbe_VXKG5SQ)
How to Measure Blood Oxygen Saturation on APPLE Watch Ultra - Control Health with Apple Watch - YouTube
![Lawsuit alleges Apple Watch's blood oxygen sensor 'racially biased'; accuracy problems reported industry-wide - ABC News Lawsuit alleges Apple Watch's blood oxygen sensor 'racially biased'; accuracy problems reported industry-wide - ABC News](https://s.abcnews.com/images/US/oximeter-1-gty-er-221229_1672337552625_hpMain.jpg)
Lawsuit alleges Apple Watch's blood oxygen sensor 'racially biased'; accuracy problems reported industry-wide - ABC News
![Apple reveals Apple Watch Series 6 with blood oxygen sensor and a more affordable Apple Watch SE - Tech Guide Apple reveals Apple Watch Series 6 with blood oxygen sensor and a more affordable Apple Watch SE - Tech Guide](https://www.techguide.com.au/wp-content/uploads/2020/09/AppleWatchSeries69.jpeg)